baber/WOPTO huggingface dataset:
Patent GB-391871-A (GB)
Title: Improvements in and relating to automatic starters for slipring induction motors
IPC: H02P1/26
Filed: 1932-08-03
Abstract: 391,871. Rocking-bar controllers ; electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, HASTINGS, H. C., 235, Clifton Road, and BOURNE, S. N., Birdingbury, both in Rugby. Aug. 3, 1932, No. 30466/31. [Classes 38 (iii) and 38 (v).] An automatic starter for a slipring induction motor has main stator contacts S closed by resilient co-operating contacts on a pivoted lever X connected by a link L to the plunger O<1> of a solenoid O, and fixed rotor resistance contacts R<1>, R<2> co-operating with bridging contacts resiliently mounted in tiers on a pivoted lever Y, another lever W on the same pivot Q connected to the plunger by a link H causing the contact lever to follow its movement by means of a spring connection P, and a time-delay device being connected to the contact lever to cause the tiers of contacts to be bridged in timed sequence. A rack T<1>, Fig. 7, rigidly attached to the lever Y actuates a pendulum time delay device through gearing and an escapement. The circuit connections are shown in Fig. 5 where M is the start button and N the stop button ; E is an economy resistance inserted as soon as the switch is closed by an interlock E<1>, which may be mounted on the lever K.
Patent GB-949488-A (GB)
Title: Process for the production of conjugated diolefines
Inventor: GASSON EDWARD JAMES
IPC: C07C5/48
Filed: 1961-08-24
Abstract: Conjugated diolefines are produced by reacting a mono-olefine at an elevated temperature with oxygen over a catalyst comprising (1) a mixture of the oxides of phosphorus and bismuth and an oxide of at least one of the metals iron, cobalt and nickel and/or (2) a compound of oxygen, phosphorus and bismuth in admixture with a compound of oxygen, phosphorus and at least one of the metals iron, cobalt and nickel, e.g. bismuth and iron phosphates. The catalysts may be deposited on supports.  A gaseous diluent may be employed when proportions specified are 1-25% by volume mono-olefine and 1-21% by volume oxygen.  Diluents specified are nitrogen and/or steam, peraffinic and naphthenic hydrocarbons. Mono-olefines specified are butene 1 and 2, 2-methyl butene 1 and 2 and 3-methyl butene 1.ALSO:Catalysts for the conversion of mono-olefines to conjugated di-olefines are (1) a mixture of the oxides of phosphorus and bismuth and an oxide of at least one of the metals iron, cobalt and nickel and/or (2) a compound of oxygen, phosphorus and bismuth in admixture with a compound of oxygen, phosphorus and at least one of the metals iron, cobalt and nickel, e.g. bismuth and iron phosphates.  The examples describe adding phosphoric acid to a dilute nitric acid solution of bismuth and ferric, cobalt or nickel nitrate which is then evaporated to dryness and heated at 600  DEG C. for 16 hours. The catalysts may be deposited on carriers, e.g. silica, alumina or diatomaceous earth.
Patent GB-1216162-A (GB)
Title: Process for producing 2'-deoxyuridine
IPC: C07H19/06
Filed: 1969-06-17
Abstract: 1,216,162. 2-Deoxyuridine and derivatives. TAKEDA YAKUHIN KOGYO K.K. 17 June, 1969 [18 June, 1968], No. 30520/69. Heading C2C. 2-Deoxyuridine is prepared by reacting a compound of formula where each R<SP>1</SP> and R<SP>2</SP> is H or C 1-7  alkanoyl, under anhydrous conditions at 50-200‹ C. to give a 3<SP>1</SP>,5<SP>1</SP> - di - O - alkanoyl - 2<SP>1</SP> - bromo - 2<SP>1</SP>- deoxyuridine, reducing this to a 3<SP>1</SP>,5<SP>1</SP>-di-O- alkanoyl - 2<SP>1</SP> - deoxyuridine and hydrolysing off the alkanoyl groups. 3<SP>1</SP>,5<SP>1</SP> - Di - O - propionyl - 2<SP>1</SP> - bromo - 21- deoxyuridine is claimed per se.
Patent GB-1188143-A (GB)
Title: Improvements in or relating to Ovens for Food
Inventor: LARMUSEAU MARC AUGUSTE ROGER
IPC: A47J39/00
Filed: 1967-07-04
Abstract: 1,188,143. Apparatus for heating food. M. A. R. LARMUSEAU. 4 July, 1967 [7 July, 1966], No. 30752/67. Heading A4D. [Also in Division F4] An oven for heating up food comprises a heated tunnel 1 and means for transporting food containers 2 over a heating unit 3, an upper oven portion 4 containing berths 5 for receiving the containers after passage through the tunnel, and a water tank 35 through which a pipe 36 is led carrying the oven exhaust gases and from which a pipe 37 conveys steam to the berths 5 where the pipe is perforated. Transportation of the containers is provided by endless chains 11 over a pulley 12, driven via a speed reduction gear 13 by a motor 16. The tunnel heating is provided by perforated runs of horseshoe shape opening into a common duct which supplies the gaseous fuel and controlled automatically by valves and stopcocks on the control panel 22.
Patent GB-1175023-A (GB)
Title: Hydrogenation of Residuum
Inventor: ALPERT SEYMOUR BERNARD
IPC: C10G45/16
Filed: 1968-06-27
Abstract: 1,175,023. Hydrocracking HYDROCARBON RESEARCH Inc. 27 June, 1968, No. 30778/68. Heading C5E. A process of hydrogenating and hydrocracking a reduced crude having at least 25 volume per cent boiling above 975‹ F. comprises (a) passing said crude at a temperature in the range of 750‹ to 900‹ F. and at a pressure in the range of 1000 to 5000 p.s.i.g. together with at least 2500 SCF/BBL of hydrogen upwardly through a reaction zone in the presence of a hydrogenation type catalyst having a narrow size range, said range falling between # inch and 325 mesh (USS), whilst (b) the flow velocities of liquid and hydrogen upwardly through the catalyst are such as to expand the bed of catalyst at least 10% over the settled state volume and to maintain the catalyst in random motion in the liquid, and (c) the space velocity of the liquid is such as to accomplish more than 50% conversion of the 975‹ F. plus boiling components in the feed and to partially remove sulphur, (d) separating the effluent from the reaction zone into a gas phase and a liquid phase, (e) fractionating the vapour phase and the liquid phase to separate out fractions boiling above 680‹ F., and (f) recycling one of said fractions to the reaction zone at a rate equivalent to at least 25 volume per cent of the feed. The catalyst may be cobalt molybdate or nickel molybdate on alumina or alumina-silica. The fraction recycled may be a 975‹ F. plus fraction or a 680‹ to 975‹ F. cut.
Patent GB-794060-A (GB)
Title: Method of and apparatus for scrubbing gases
IPC: B01F3/04
Filed: 1955-10-28
Abstract: 794,060. Washing gases. FARBENFABRIKEN BAYER AKT.-GES. Oct. 28, 1955 [Nov. 9, 1954], No. 30911/55. Class 55 (2). Apparatus for scrubbing gases comprises a tower which is closed at the top and has supply and discharge pipes for the scrubbing liquid and gas at its lower end, the nozzle 3 of liquid supply pipe 2, gas supply pipe 4 and gas outlet 12 being concentrically arranged. The liquid issuing from nozzle 3 entrains the gas as it passes upwardly and both are deflected through 180 degrees by deflecting surfaces 6, meeting at a point 7, and pass down the walls 8 of the tower. The liquid collecting in sump 9 is forced by pump 1 through pipes 11, 2, back to nozzle 3, whilst sludge is discharged by pump 10.
Patent GB-1419778-A (GB)
Title: Photographic silver halide processes and compositions
IPC: F16J15/10
Filed: 1972-12-22
Abstract: 1419778 Photographic silver halide stabilizing composition POLAROID CORP 22 Dec 1972 [23 Dec 1971] 31104/75 Divided out of 1419776 Heading G2C A photographic silver halide stabilizing composition comprises water, a uracil and bis-(#- aminoethyl) sulphide. The uracil may be 5-or 6-methyl uracil. The composition may contain a silver halide developing agent or a 6-(optionally substituted alkyl)-aminopurine as defined in Specification 1419776). In the example the composition contains 6-benzylaminopurine and is used in a dye-developer diffusion transfer process. The combination of a uracil and bis-(#-aminoethyl) sulphide provides a much more difficultly reduceable complex than do conventional silver halide solvents and does not interfere with silver halide development.
Patent GB-520941-A (GB)
Title: Improvements in and relating to record delivery mechanism for gramophones and the like
IPC: G11B17/16
Filed: 1938-10-28
Abstract: 520,941. Magazine gramophones. GARRARD ENGINEERING & MANUFACTURING CO., Ltd., and OFFEN, F. J. Oct. 28, 1938, No. 31222. [Class 40 (ii)] Relates to mechanism for supporting a pile of records above a turntable and delivering out one record at a time by means of a three-part stem threaded through the central hole of the records as described and claimed in Specification 454,337 According to the present invention, the three-part central support comprises a fixed sleeve b, a rotatable sleeve h within the sleeve b, and a rotatable spindle e within the sleeve h. The rotatable sleeve h and spindle e can be rotated to bring shoulders g and d thereon in alignment with the fixed sleeve b to enable the records to be threaded over the sleeve b. The spindle e is then rotated 180 degrees to bring the shoulder d in line with the spindle c of the turntable, in which position the records are supported by the shoulder d. To feed the bottom record to the turntable, the sleeve h is rotated 180 degrees whereby the shoulder g pushes the bottom record sideways until it is no longer supported by the shoulder d. The sleeve h is then rotated back to the position shown in readiness to feed the next record. The sleeve h may be rotated by means of a pinion i and rack j. The spindle e may be rotated by means of a handle f which is pivoted at f<SP>3</SP> to the head f<SP>1</SP> of the spindle and is urged downwards by a spring q to make it interlock with a stud p to hold the spindle in the normal operative position shown. The sleeve b is carried by a bracket a which carries the stud p and through which slides vertical rods l, l on a follower plate h pressed over the top record of the pile by a spring n. This mechanism may be used in conjunction with the automatic record changing mechanism described in Specification 486,999.
Patent GB-823897-A (GB)
Title: Luminescent transfer paper
Inventor: JR EDMUND NEWTON HARVEY
IPC: B41M5/10
Filed: 1957-10-07
Abstract: 823,897. Luminescent materials and uses thereof. KEE LOX MANUFACTURING CO. Oct. 7, 1957, No. 31278/57. Class 39(1). [Also in Group XVI] A transfer element comprises a paper support coated with a readily transferable copying layer containing wax and a luminescent substance which is substantially invisible in ordinary light but which fluoresces when exposed to energy having a wavelength different from that re-emitted by the luminescent substance. The preferred coating mixture comprises 32% carnauba wax, 21% mineral oil and 47% luminescent substance such as zinc sulphide activated by gold, copper, silver, bismuth or manganese. Ten thousand parts of pure zinc sulphide may be ground in a porcelain ball mill with one part of the activator and heated to about 1050‹C. to form a crystal structure. The luminescent material instead of being mixed with wax may be coated onto the surface of a wax coating on a sheet of tissue paper. The transfer element may be placed between two sheets of paper to provide a normally invisible copy on the underlying sheet of matter printed on the overlying sheet, or to provide a normally invisible "negative" copy on the under surface of the overlying sheet. The element may also carry a conventional carbon coating either on the other side of the paper support or between the paper and the luminescent layer or may combine these arrangements as shown in Fig. 4. In the latter case, if the carbon copy is erased or obliterated the underlying, normally invisible copy is stated to be unharmed. The exciting radiation may be electromagnetic, sound or invisible light waves. The luminescent material may be rhombohedral crystals of Willemite (Zn2 SiO4 : Si) excited by magnetic fields; tetragonal crystals of ZnF2: Mn, cubic crystals of ZnS : Mn, or Ca2 P 2 O 7 : Dy excited by sonic or ultrasonic vibrations ; or cubic crystals of Sr (S : Se) : SrSO 4 : CaF2 : Sm : Eu excited by infra-red radiations.
Patent GB-1470469-A (GB)
Title: Writing implement with a replaceable refill
IPC: B43K5/02
Filed: 1975-07-25
Abstract: 1470469 Writing appliances INTERLIGHT 25 July 1975 [26 July 1974] 31336/75 Heading B6P When writing refill 5 is pushed down against spring pressure and flap 16 is closed on top of it, ramp 19 forces its upper end under abutments 22, so that it is retained in its pen body. Opening of the flap causes the ramp 20 to move the refill end sideways to opening 17, so that it protrudes and can be replaced.
Patent GB-1065972-A (GB)
Title: Production of polymerised tetrahydrofuryl compounds
Inventor: NAARMANN HERBERT
IPC: C08F24/00
Filed: 1964-08-04
Abstract: A copolymer of 1 to 30% by weight of a tetrahydrofuryl compound having the general formula <FORM:1065972/C3/1> in which X denotes <FORM:1065972/C3/2> <FORM:1065972/C3/3> R denotes a hydrogen atom or an alkyl group, R1 denotes an alkyl, aryl or cycloalkyl group and Y denotes a hydrogen atom or <FORM:1065972/C3/4> with 99 to 70% by wt. of one or more other ethylenically unsaturated polymerizable compounds, is obtained by polymerizing under conventional conditions. Copolymers with ethylene butadiene, styrene and ethyl acrylate are exemplified.
Patent GB-1002038-A (GB)
Title: Base plates for pit props
IPC: E21D15/54
Filed: 1961-08-31
Abstract: 1,002,038. Base plates for pit props. G. W. HAMMER. Aug. 31, 1961 [Sept. 22, 1960; June 7, 1961], No. 31421/61. Heading E1E. A prop 2 is pivotally connected by means of a bolted strip 3 to a plate 5 which is hinged to a strap 7 secured to the base plate 1 of the prop, the arrangement being such that the prop 2 can tilt in the direction of the coal face. The strap 3 may consist of a U-shaped member secured to a T-piece the leg of which constitutes a fork-like member for attachment to the hinged plate in the shape of the strap components being selected according to the cross-section of the prop employed for examples of which Figs. 2- -8 (not shown) should be referred to.
Patent GB-223435-A (GB)
Title: Improvements in or connected with envelopes or containers for postal transmission or the like
IPC: B65D27/22
Filed: 1923-12-14
Abstract: 223,435. Embleton, J. W. Dec. 14, Envelopes.-The envelope closure described in Specification 108,028 is made with the tongue d curved or tapered to facilitate its insertion into the slot b after the flap a has been pushed through the cut c.
Patent GB-812695-A (GB)
Title: Means for restricting expansion and contraction of surfaces of internal combustion engines subject to severe cyclic temperature changes
Inventor: DICKSON John
IPC: F02F1/24
Filed: 1955-11-03
Abstract: 812,695. Cylinders. GENERAL MOTORS CORPORATION. Nov. 3, 1955, No. 31439/55. Classes.7(2) and 7(3) Cylinder-head grooves 42, 44 allow plastic flow of combustion-chamber surfaces but reduce heat conduction between zones thereof which are at extremes of temperature, and so minimize cylinder-head surface cracking and failure of gaskets 24. 26. A further groove 46 surrounds a cooling-water passage 48. There is a fuel injector 38 and valves 36. As applied to a loop-scavenged two-stroke engine cylinder, only the groove 42 is provided, surrounding a conical cylinder-head recess encircling a central combustion chamber housing a fuel injector.
Patent GB-456942-A (GB)
Title: Improvements in pivoted joints
IPC: F16C11/08
Filed: 1935-11-14
Abstract: 456,942. Ball joints. TAMPIER, R. J. C., 1, Rue de Bellevue, Boulogne-sur-Seine, France. Nov. 14, 1935, No. 31538. Convention date, Nov. 14, 1934. [Class 65 (ii)] A ball joint, particularly for a lever 4, comprises a casing 2 mounted in an adjustable eccentric ring 15 for varying] the position of the casing on the base 1 and clamped by a nut 16, a fixed seating 7 and a sliding seating 8 in the casing to receive the ball 6, and a sleeve 11 screwed into the uppei end of the casing 2, a spring 14 being interposed between the sleeve 11 and the seat 8 to press the latter against the ball ; the sleeve may, however, be screwed down to press directly on the seat 8. In the form shown, the sleeve is locked by a nut 12 fitting over the end of the casing 2 ; a bored extension of the seating 8 carries a lubricating device 9, and the joint is provided with a cover 13. The lever 4 has a similar joint on its other side ; a stop 17 on the base 1 engages a notch in the hub of the lever.
Patent GB-210563-A (GB)
Title: Improvements relating to boilers for use in connection with hot water circulating systems
IPC: F24H1/40
Filed: 1922-11-18
Abstract: 210,563. Hartley & Sugden. Ltd., Fox. S., and Waterworth, H. Nov. 18, 1922. Water-tube boilers are constructed in section each comprising tubes c joining an upper header A to two lower headers B to form an inverted V. Both sets of tubes are accessible through an aperture a<1> in the top header and each lower header has an aperture b<1>. The rear end section may comprise two rectangular headers A', B' connected by vertical tubes C<1>. Products of combustion from the fire pass through apertures m to the flues m<1> and to the smoke tube N. Connections to collectors D, E, are made by short tubes d, e from each section.
Patent GB-338312-A (GB)
Title: Process and machine for sorting peas, seeds, cereals and the like
IPC: B07B13/00
Filed: 1929-10-18
Abstract: 338,312. Webb & Sons (Stourbridge), Ltd., E., and Clayton, J. Oct. 18, 1929. Sorting on picking tables.-Apparatus for facilitating the handpicking of peas, seeds, cereals &c. consists of an endless convever belt, 3, Figs. 1, 3, divided into a number of successive step down stretches 8 - 11 so that the peas &c. in passing from one stretch to the next are turned over and expose, different sides, a series of transverse guard strips 17 to prevent the peas from being carried under the step-forming structure by the belt, and a feeding device consisting of a hopper 6 provided with one or more bottom openings 21, Fig. 5, each associated with a casing 22 in which rotates a toothed wheel 23 by which the peas are delivered through the aperture. 29 on to the band. In the preferred arrangement, the first stretch 8 inclines gently downward, and the succeeding stretches are inclined upward to maintain the general height of the band. The steps are, formed by pairs of rollers 12, 13, the axle of the rear roller of each pair being slightly lower than the front one. The tension of the belt is adjusted by mounting the roller 5 at the forward end on an adjustable slide 36, and the rear driving roller 4 is provided with a friction surface against which the belt is pressed by a spring-controlled roller 20. The band runs between side rails providing a leaning surface for the operatives and lined with a rubber edging strip. A spreader 30 may be arranged in front of each of the feed-casings.
Patent GB-1480493-A (GB)
Title: Method for making a timepiece and a frequency divider circuit therefor
IPC: G04G3/02
Filed: 1974-07-17
Abstract: 1480493 Variable frequency dividers; electronic timepieces SUWA SEIKOSHA KK 17 July 1974 [20 July 1973] 31681/74 Heading G3T [Also in Division G4] In the manufacture of quartz crystal timepieces provision is made for using less accurately manufactured crystals. The invention is a method which involves measuring the natural frequency of oscillation of a selected crystal; determining in which of a number of frequency lands the crystal falls; selecting a frequency divider or a division factor of a variable divider to match that land; and finally trimming to crystal oscillator, e.g. using a capacitor, to obtain the desired output frequency from the divider. A variable frequency divider circuit, Figs. 3 and 4 (not shown) is illustrated whose division ratio is determined by whether or not two control terminals are wired during manufacture. When they are wired they enable gates which effectively add extra pulses into the output train thus reducing the division ratio.
Patent GB-1259784-A (GB)
Title: Method of separating salts of stereoisomers of 4,4'-diaminodicyclohexylmethane
Inventor: BESWICK GEOFFREY ERNEST
IPC: C08G69/26
Filed: 1968-07-03
Abstract: 1,259,784. Diaminodicyclohexylmethane. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 June, 1969 [3 July, 1968], No. 31789/68. Heading C2C. The invention comprises a method for the partial separation of the stereoisomers of 4,4<SP>1</SP> - diaminodicyclohexylmethane. The method consists in forming a salt of the isomers with a dicarboxylic acid and subjecting the salt mixture to a water wash, whereby a solid residue having an increased proportion of the trans, trans isomer is obtained. The preferred dicarboxylic acid is α,#-dodecanedioic acid, but others are specified also. Examples are given. The trans, trans isomer may be used in the manufacture of polyamides (see Division C3).
Patent GB-1374836-A (GB)
Title: Chrysotile asbestos sorption agents
IPC: C12H1/044
Filed: 1972-07-07
Abstract: 1374836 Treating asbestos O HUBER 7 July 1972 [7 July 1971] 31896/72 Addition to 1342102 Heading C1A [Also in Division C6] An adsorption agent is obtained by treating chrysotile asbestos with an aqueous inorganic acid to remove some of the Mg ions to form a SiO2-containing gel having free SiOH groups, followed by drying to remove water but retain SiOH groups, the conditions being such that the product has a positive Zeta potential. The preferred treatment is with HCl at room temperature or 80-90‹ C., drying at 70-150‹ C., heating at 190-260‹ C., and grinding. Other acids mentioned are HBr, HI, HNO3, H2SO4 and H3PO4. The product may have an SiO2 content of 40-75%, an MgO content of 10-40%, a surface area of 60-400 m.<2>/g., a specific weight of 2À25-3À4 g./c.c, a bulk density of À08-À5 kg./ litre, and a Zeta potential of +1 to + 80 mV. It is used to remove tannins from beer.
Patent GB-751346-A (GB)
Title: Furnace slot seal
IPC: F27B9/26
Filed: 1954-11-04
Abstract: 751,346. Enamelling &c. furnaces. FERRO CORPORATION. Nov. 4, 1954 [Feb. 26, 1954], No. 31914/54. Class 51(2). A device for screening the slot 35 in the roof of an enamelling furnace through which depend the ware supporting rods 37 comprises a series of air discharge pipes 17 formed with horizontal slots 18 extending along one side of the roof slot 35 and blowing a thin curtain of air into slightly larger slots 21 in return pipes 20 disposed on the other side of the roof slot. The air is blown across at sufficient velocity to prevent the passage of dust, scale &c. onto the ware carried by the rods 37. The screening air passes successively from a motor driven fan 10 through a distribution box 12, headers 13, branch pipes 14, secondary headers 15 and branch pipes 16 leading to the discharge pipes 17. Air from the return pipes 20 passes through branches 20a, headers 23, branch pipes 24 and a main header 25 feeding a return box 27 provided with a return connection 28 to the fan and a damper-controlled fresh air inlet 29. A baffle plate 22 is disposed over the return pipes 20 to create turbulence in any air which escapes recirculation. Dampers 19 are provided in the branch pipes 14 and dampers 26 in the return branch pipes 24. The returned air may be filtered. In a modification, Fig. 3 (not shown), the air screen discharges against a baffle plate without recirculation to the fan.